Furnace or hearth.



No. 7|7,034. Patented Dec. 30, I902.

I H. SCHWIEBUS.

FURNACE 0B HEARTH.

(Application filed Dec. 19, 1901.)

(No Model.)

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UNrrn STATES ATENT FFICE;

I-IERMANN SCHWIEBUS, OF DRESDEN, GERMANY.

FURNACE OR HEARTH.

SPECIFICATION forming part of Letters Patent N 0. 717,034, dated December 30, 1902.

Application filed December 19, 1901. Serial No. 86,573. (No model.)

T0 at whom, it may concern:

Be it known that I, HERMANN ScHwIEBUs, a subject of the King of Saxony, and a resident of Dresden, Saxony, Germany, have invented certain new and useful Improvements in Furnaces or Hearths, of which the following is a description.

The present invention relates to furnaces or hearths having horizontal grates; and it consists of means, as hereinafter set forth, for consuming the smoke and fire-gases.

In order to render the present specification easily intelligible, reference ishad to the accompanying drawings, in which similar letters of reference denote similar parts throughout the several views.

Figure 1 is a vertical section through a furnace constructed according to the present invention; and Fig. 2 is a plan, partly in horizontal section, of the said furnace.

In order to attain the object in View, the furnace is provided with a bridge Ct, extending from the roof of the fire-space down into the coal on the grate and mounted at the rear part of the said grate. Behind this bridge is the ordinary fire-bridge d, the said depending bridge a being arranged at approximately equal distances from the bridge 01 and the grate 0. At the front of the furnace a deflector-plate b is mounted beneath the grate, which serves to deflect the air entering below the grate and to cause it to pass more directly to the coal in proximity to the bridge a.

The furnace is provided with the usual firedoor e.

The operation of thedevioe takes place in the following manner: The air entering below the grate is deflected by the plate 6 and passes to the fuel at a point shortly in front of the depending bridge a, thus causing the fuel beneath and around and behind the said bridge to glow with great intensity, while the fuel at the front part of the grate will burn more slowly. By means of the bridge Ct the smoke and fire-gases developed will be forced to pass through the mass of intensely-glowing fuel around and beneath the said bridge, and thus they will be entirely burned.

I claim as my invention- In a furnace having a horizontal grate and a fire-bridge, the combination ofadepending bridge extending down into the fuel at the rear part of the grate and mounted at approximately equal distances from the fire-bridge and the grate and a deflector-plate mounted at the front end of the grate and inclined downward toward the rear of the grate in the manner and for the purpose substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

HERMANN SOHWIEBUS.

Witnesses:

HERNANDO DE SoTo, PAUL AnRAs. 

